This work concerns an optimisation of a bus body structure under transient vibrations. A simulation of a bus traversing an obstacle, with a cross-section of 50 x 200 mm2, is carried out and the response of the bus, due to the rear axle impact, is calculated. An FE model of the complete bus has been used, and the obstacle has been modelled by prescribed displacements under tyres on the rear axle. Accelerations have been evaluated by use of the comfort standard ISO2631:1997 at three different locations within the bus and a global measure of the discomfort has been defined. Corresponding measurements of the response within a test bus have been carried out and a satisfactory agreement between the computational model and the test bus is shown. A multicriteria approach to define the objective function, considering both discomfort and mass of the bus body, was adopted and the results showed that it was possible to reduce the discomfort with a minimum use of extra material. However, an investigation regarding more time efficient optimisation algorithms for this particular problem is desirable.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Optimisation of a bus body structure


    Contributors:

    Published in:

    Publication date :

    2001


    Size :

    16 Seiten, 13 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    CAE Optimisation of the Jaguar S-Type Body Structure

    Nightingale, B. / International Symposium on Automotive Technology and Automation | British Library Conference Proceedings | 1999


    Gauge sensitivity indices for vehicle body structure assessment and optimisation

    Prater,G. / Zhang,S. / Shahhosseini,A.M. et al. | Automotive engineering | 2009



    Multi-disciplinary optimisation for front auto body based on multiple optimisation methods

    Gao,Y. / Sun,F. / Tongji Univ.,CN | Automotive engineering | 2011


    A Combined Optimisation of Automotive Body Joints

    Gaeta, A. / La Monaca, A. / Frasca, F. et al. | British Library Conference Proceedings | 2003